Automobile bumper



FIG. 1 is a front and right side perspective view of an automobile bumper showing our new design;

FIG. 2 is a rear and right side perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front perspective view thereof; and

FIG. 5 is an enlarged front elevational view thereof.

The broken lines in the drawing are for illustrative purposes only. 

The ornamental design for an automobile bumper, as shown and described. 